@Misc{HMP,
author = {Butko, Nicolas and A. Lehmann, Katharina and Ramenzoni, Veronica},
title = {Ricochet Robots - A Case Study for Human Complex Problem},
note = {\begin{footnotesize}\emph{\url{http://www-pr.informatik.uni-tuebingen.de/mitarbeiter/katharinazweig/downloads/ButkoLehmannRamenzoni.pdf}}\end{footnotesize}}
}

@Misc{NPC,
author = {Engels, Birgit and Kamphans, Tom},
title = {On the Complexity of Randolph’s Robot Game},
note = {\begin{footnotesize}\emph{\url{http://web.informatik.uni-bonn.de/I/publications/ek-rrgin-05.pdf}}\end{footnotesize}}
}

@Book{AIMA,
 title = {Artificial Intelligence: A Modern Approach.},
 publisher = {Prentice Hall},
 year = {1995},
 author = {Stuart \& Russel},
 note = {\begin{footnotesize}\emph{\url{http://aima.cs.berkeley.edu/index.html}}\end{footnotesize}}
}

@Book{MOP,
 title = {Métaheuristiques pour l'optimisation difficile},
 publisher = {EYROLLES},
 year = {2005},
 author = {Dréo, Johann and Pétrowski, Alain and Siarry, Patrick and Taillard, Eric},
}